WLL190T-G SICK Digital Fiber Sensor (Green LED)

This is a very common general purpose light transmission sensor used in manufacturing industry. Besides the general purpose application such as counting, object detection, etc, it is more powerful with the digital display to show the intensity of the light reflected. With this, we can used it to differentiate two different colors, thus line following task can be done with it. For different sensing object, you need different color of light source. Users need to refer to this color chart to determine either Red LED or Green LED model to buy.